Home / 28,542.30-39,386.97-15,795.25

Finding the Fourth Proportional to 28,542.30, 39,386.97 and 15,795.25

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Solution

The fourth proportional to 28,542.30, 39,386.97 and 15,795.25 is: 21,796.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.30 : 39,386.97 = 15,795.25 : x
  2. Step 2: Convert to fraction form
    28,542.30/39,386.97 = 15,795.25/x
  3. Step 3: Cross multiply
    28,542.30x = 39,386.97 × 15,795.25
  4. Step 4: Simplify right side
    28,542.30x = 622,127,037.89
  5. Step 5: Solve for x
    x = 622,127,037.89/28,542.30
  6. Step 6: Final answer
    x = 21,796.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.